AVIF converter for Mac
Convert images to AVIF in one batch
To convert images to AVIF on a Mac in bulk, drag your JPG, PNG, WebP, or HEIC files into ImageCrush, set the output format to AVIF, choose a quality around 75%, and export. The whole batch converts in one pass on your Mac, with optional resizing and renaming. No command line needed.
$14.99 one-time · macOS 15.7+ · No account required
How to batch convert images to AVIF on a Mac
Add your images
Drag in JPG, PNG, WebP, HEIC, or HEIF files, or a whole folder. Hundreds at a time is fine.
Choose AVIF
Set Output Format to AVIF. ImageCrush bundles an optimized open-source AVIF encoder, so there’s nothing to install.
Set the quality
Start around 75%, or 60% for aggressive savings. Quality numbers aren’t comparable across formats, so check results with the before/after slider.
Resize if needed
Set a maximum width and height so oversized originals come out at the size you’ll actually serve.
Export
Batches run concurrently on up to 8 threads, so the slower AVIF encoding still gets through a folder fast. Originals stay untouched.
Export a fallback too
Use a Preset Sequence to export AVIF and a WebP or JPEG fallback from the same batch in one pass.
The smallest files we measured
AVIF won every category in our format benchmarks. At 75% quality:
- Illustrations: 276 KB (vs 336 KB WebP, 1,300 KB JPEG)
- Photos: 2,599 KB (vs 3,593 KB WebP, 5,913 KB JPEG)
- Screenshots: 224 KB (vs 245 KB WebP, 618 KB JPEG)
- UI assets: 81 KB (vs 95 KB WebP, 278 KB JPEG)
It’s also the only format that reliably came in smaller than iPhone HEIC originals at moderate quality. JPEG and high-quality WebP made those files bigger.
When to use AVIF, and when not to
Use AVIF for website images where every kilobyte counts: hero images, product photos, large galleries. Current versions of Chrome, Safari, Firefox, and Edge support it.
Serve a fallback (WebP or JPEG via the HTML <picture> element) if you need to cover older browsers. ImageCrush can export both in one pass.
Skip AVIF for email, social uploads (platforms re-encode anyway), and anything going to people whose apps may not open it. Use JPEG there.
AVIF also takes longer to encode than JPEG or WebP. That’s fine for a one-off export, and parallel processing keeps batches moving.
No command line required
Most AVIF workflows on a Mac mean installing encoders through Homebrew and scripting them, or uploading images to a web converter.
ImageCrush is a native Mac app with AVIF encoding built in. Drag, drop, export. Everything stays on your Mac, and you can see the size savings and visual quality of every image before you use it.
Frequently asked questions
Can’t find what you’re looking for? Ask us directly.
macOS can open and display AVIF images, but the built-in tools such as Preview and Finder’s Convert Image don’t offer AVIF as an export format. ImageCrush adds AVIF export with batch processing and a quality slider.
For file size, yes. AVIF produced smaller files than WebP in every category we tested. WebP encodes faster and has slightly broader support in older software, so many sites serve AVIF with a WebP fallback. Convert to WebP instead
Start around 75%. AVIF holds up well at lower settings, so 60% is often fine for web photos. Quality numbers aren’t comparable across formats, so compare results visually rather than matching the number you use for JPEG.
Yes. Current versions of Chrome, Safari, Firefox, and Edge all support AVIF. For older browsers, serve a WebP or JPEG fallback with the HTML picture element.
AVIF uses a more complex compression algorithm than JPEG or WebP, which is what makes the files smaller. ImageCrush offsets this by processing up to 8 images in parallel.
Yes. ImageCrush imports AVIF and exports JPG, PNG, WebP, HEIC, or AVIF.
Related reading
Try it on your next batch
The 7-day trial includes every feature, with no account and no credit card. If it earns a place in your workflow, it’s a one-time $14.99.